19. Pluto is no longer considered a planet, and is considered a dwarf planet because it has not “cleared the neighborhood around its orbit. This saying pretty much means that Pluto has gained control of the gravity around it. So astronomers made a name for these planets known as the dwarf planets, to show that it is a planet that continues to orbit the sun, but it hasn’t cleared the neighborhood.
20. When meteoroids enter Earth’s atmosphere, they disintegrate before they hit the ground. When a meteoroid does hit Earth’s surface, those are called meteorites.
21. The Nebular theory states that the solar system was a rotating disk of gas and dust. As the speed started to increase, the middle of the disk began to flatten. And as the middle started
20. When meteoroids enter Earth’s atmosphere, they disintegrate before they hit the ground. When a meteoroid does hit Earth’s surface, those are called meteorites.
21. The Nebular theory states that the solar system was a rotating disk of gas and dust. As the speed started to increase, the middle of the disk began to flatten. And as the middle started